Why does one brake light work and the other brake light does not work?

Is/Are the other bulb(s) burnt out?

Two filaments in the light bulb. One is the tail light, the other is the brake light. ...

If it is just one brake light, the chances are good that it is the bulb. Bulbs are cheap. ...

most likely a bulb b/c if it was the fuse your other brake and signal light wouldn't work... most vehicles the brake and signal light are all in one bulb... try replacing the light bulb ...

because there is two filiments in the bulb one for brake and signal light and one for running light ...

Start with replacing the bulb.

tail light bulbs has two filaments inside. One for regular lights and a second for brake lights. One filament is burnt out. Change the bulb. ...

Yes. One switch is for the left and right brake light assemblies; and, the other is for the 'third' brake light. ...

Check the switch. It has a different one than the regular brake lights. the light bulb could possibly be blown ...

It is possible that one of the bulbs is shorting out. Try replacing the brake light bulbs, if that doesn't work, troubleshoot the brake light switch. ...

you have to pull the feed wire off the brake switch to supply power to the new third brake light. get a test light and test the wires on the brake switch....one is hot all the time the other one gets hot when you depress the pedal....that is the one you need. do not take it pull your power from the rear light it might have an intergrated turn signal wire. which would make your 3rd brake light blink.. ok.have fun!...

They are two stage bulbs two bulbs in one one of the filaments must be out being the one for your brake lights enjoy If the bulbs check okay, check the brake light fuse, if the fuse checks okay, the brake light switch may be out of adjustment or faulty. ...

The tail light/brake light bulb has two filaments. If one of the filaments is broken, you will get either only tail lights, or brake lights. If a new bulb doesn't work, then you have a broken wire or bad connection in your plug-in. ...

check your rear light bulbs. it is a two filament light and one is burned out. ...

check light bulbs and fuses. light bulbs have 2 elements in them, one for stop and one for running. if thses are ok, replace brake light switch on brake pedal ...

Nonworking Brake Lights Yes, it could be the brake light switch [either not properly adjusted, or defective], BUT there could be other causes: One of the several connector plugs in the brake light wiring could be disconnected. Any on of the conductors [wires] in the brake light circuit could be cut, broken, or disconnected A ground wire could be cut, broken, or disconnected. At any one of the above connections, there could be a buildup of corrosion which cuts off the flow of electricity. There could...

On most cars, the brake light and turn signal are the same element in the bulb with two elements in it. The other one is the tail lights. The brake light will often burn out sooner because it is used more and the on off is harder on the element. If you have the front amber running lights, it is almost certainly the bulbs. ...

Question: Does the turn signal blink on the right rear? I suspect not. Both the brake light and the turn signal use the same filament. If one is burnt out, the other will not work either. If so, the bulb needs replacing. ...

Nonfunctional Brake Lights One possible cause of this issue is that the brake light switch is not adjusted properly, or the switch could be defective. ...

If an Acura Vigor brake light is not working there are likely two reasons. One is that a fuse is blown and the other is that the bulb is blown. It could be both. ...

If the center one works then it will almost certainly be 2 Blown globes.

its the blinker control arm.if you move it back and forth you should see the two other brake lights go on as the brake is pressed. ...

Depending on the year, there may be one fuse for all three brake lights, or two fuses, one for the highmount brake light and one fuse for the two lower brake lights/tail lights. So, if all three brake lights are out, it could be just one fuse or perhaps the brake light switch which is on the brake pedal metal arm assembly. ...

most likely ground wire problem Bad bulbs?

bulb is out The bulb has two elements in it, one for the tail light and one for the brake. The brake one is also for the directional signals. ...